IGDTUW 2026 — Computer PYQ
IGDTUW | Computer | 2026What is the main use of secondary storage devices?
Choose the correct answer:
- A.
To execute programs directly in the CPU
- B.
To store data permanently
(Correct Answer) - C.
To increase processor speed
- D.
To store temporary data during processing
To store data permanently
Explanation
The correct option is (b) To store data permanently.
Detailed Solution & Explanation
Computer storage is broadly categorized into two main types: Primary Storage (Internal Memory) and Secondary Storage (Auxiliary Memory).
Understanding Secondary Storage:
Secondary storage refers to external or non-volatile storage devices that are not directly accessible by the Central Processing Unit (CPU). Examples include Hard Disk Drives (HDDs), Solid State Drives (SSDs), Pen Drives, and CDs/DVDs. Its primary purpose is to preserve software programs, the operating system, and user files over long periods.
Analyzing the Options:
(a) To execute programs directly in the CPU: Incorrect. The CPU can only execute instructions that are currently residing in primary memory (such as RAM or Registers). It cannot execute files directly from secondary storage.
(b) To store data permanently: Correct. Unlike RAM, secondary storage is non-volatile, meaning it retains all its data securely even when the computer system is turned completely off (0V power supply).
(c) To increase processor speed: Incorrect. Cache memory and RAM speed up system performance. Secondary storage is actually much slower than primary storage.
(d) To store temporary data during processing: Incorrect. Storing active runtime files and temporary computations is the role of RAM (Random Access Memory).
Therefore, the primary design function of secondary storage devices is permanent data retention